Convertible coal saver and gas burner



Ja'n. 29, 1924. 1,482,103

G. VAN DAAM CONVERTIBLE COAL SAVER AND GAS BURNERl Filed Jan. 20. 1921jneizort- Germ? Yaam,

Patented J. 29, 1924.

ira sT 'r van n, or Burr comme com. sa aan eas nu i Application ledJanuary 20, 1921. Serial No. 438,798.

To all whom z't, may concern Be it known that I, Gnnmr VAN DAAM, acitizenl of the United States residin at Buffalo, in the county of Erie,tate of` ew York, have invented a new and useful Con` vertible CoalSaver and Gas Burner, of which the following is a specification.

My invention relates .to convertible coal, or other fuel saver and gasburner for furnaces or stoves. The object is to provide a device adaptedto deliver heated air to the combustion chamber of a furnace or stove,which by providing a suitable delivery end, and providing a gas supplynozzle at the intake end the devlce is also adapted to deliver and burngas mixed with heated air in said combustion chamber. l

Referring to the drawings which illustrate, merely by way of example,suitablev means for effecting my invention- Fig. 1 is a side elevationin part section showing my device adapted to deliver heated air to thecombustion chamber.

Fig. 2 is a plan view of the outlet end of same. y

Fig. 3' is an end elevation showing the air inlet regulator valve.

Fig. 4 is a side elevationof my device converted to deliver and burn gasin the combustion chamber.

Fig. 5 is a plan view of the gas burner end of the same.

Similar numerals refer to similar parts throughout the several views.

'lhe pipe 8 is exteriorly threaded throughout the greater part of itslongitudinal extension. lt is adapted to be inserted in a suitable holeprovided in the door frame or other part of a furnace or stove, and-isheld in place by the nuts 7' threaded upon said pipe 8. The outer end ofthis pipe 8 is Haring or funnel shaped, as at9, and is rovided with avalve'or regulator plate 10 lield in place by screw 10', which permits acertain rotative movement of said valve plate to regulate the amount ofair that may pass into said pipe 8. Upon the'inner end of pipe 8 isadjustably secured the end member 11, in F1g. 1, having an interiorthread to cooperate with the exterior-thread of pipe 8.` This end memberis provided with a bulb formation 12 having a substantially sphericalchamber 18, and upon one or more parts of its periphery there isprovided a substantially square t sage'.

lug or block 14, through which are provided the cross cuts 15 formin acorrespondingshaped vent ,from sai chamber 13. Within this cross-shapedvent 15 is preferably inserted the wire gauze `or screen 16. l

Within the main extension of pipe 8 is removably inserted the spiralformation 17.

lin operation the air vin the chamber 13 becomes heated from the fire inthe combustion chamber, and passes out lthrough the vent or vents 15and, mingling with the gases resulting from the combustion of the fuelgreatly facilitates the combustion of these gases in a way wellunderstood in the art. As the heated air passes'out of chamber 13through vent 15, fresh airis drawn in through pipe 8. The yspiralformation 17 tendsto retard the passage of air through pipe 8 to chamber1.3, sothat the air becomes more thoroughly heated in said pas- Anotherfunction of the'spiral formation, is that, in retarding the'passage ofair through pipe 8, it serves to make the flow more regular and lesssusceptible to fluctuations in' the draft connected with the furnace. lnfact the dow of air into and from chamber 13 is largely' due to theheating of the air in the bulb and to this extentis independent of thedraft connected with the furnace, and stove.

Where it is desired to convert the device into a gas delivery andburning device, the spiral forntiatipn 17 is preferably removed. The endmember ,11 is also removed and the burner member 18 is threaded on topipe 8 as shown inI Fig. 4. This burner member 18 is so formed that itsdischarge end has its axis at right angles to the axis of its mainextension. This discharge end is daring ory bell-shaped. Over thisHaring discharge end is adjustably secured the plate 19 by means of the`threaded stud 20 secured in the lug 21 in the 'body of member 18 near'its bend. etween the flaring end and the late 19 is 4formed ytheannular slit or I urner-vent 22, which may be made larger orsmaller asdesired, by turning the plate 19 on its threaded supportingl stud 20.

At the flaring intake end 9, is provided a centrally dis osed threadedhole 23 inwhich is secure a suitable end or nozzle 24 of a gas supplypipe 25, controlled by the valve 26.

v cohination the plate or valve 10 ill@ is adjusted to admit the necearysupply of -air' to insure proper mixing with the gas ythe annular ventr22. lThe burner end may be arranged to discharge upwardly, or may beinverted to discharge downwardly, in which latter case, that is, in theinverted position, the burning gas thoroughly heats theburner and thegas therein, thus preventing any moisture from escaping into thecombustion chamber df the yfurnace or stove.

What I claim is 1. In a fuel saving device, the combinaltion of an airconductor, ,leading from the exterior to the interior of a combustionchamber,'a chambered bod disengageably secured to the inner end o saidconductor and provided with a comparatively restricted discharge vent,and means for disengageably associating a fluid fuel supply with the airintake of the conductor.

2. In a fuel vsaving device, the combination of a air conductor, leadingfrom the exterior to the interior 'of a combustion chamber, a chamberedbody disengageably secured to the inner end of said conductor andprovided with a comparatively re stricted discharge vent, and means fordisengageably associating a iiuid fuel supply with the air'intake of theconductor, so that the device is adapted to deliver to the combustionchamber, either heated air, or a mixture of heated air and Huid fuel, asrequired.

GERRIT VAN BMM.

